I am intrigued to hear that so many of you seem to be taking these supplements; have you all had advice from medical professionals that you should be taking them? While I do certainly notice some change in my mood, and a decrease in fitness, at this time of year, it is not severe enough to be diagnosed as SAD; and I just consider it to be a natural cycle, and something that I shouldn't artificially interfere with.

As for fish oil, I eat mackerel, herrings and fresh sardines when I can get them from our fishmonger. I have been known to scrape and eat the oil from the bottom of the grill pan after a meal of herrings.